Loom.



B. GRAF.

LOOM.

APPLICATION FILED FEB. 23, 1909.

1,061,836. Patented May 13, 1913.

EMIL GRAF, F ELBERFELD, GERMANY,

LOOM.

Specification of Letters Patent.

Application filed February 23,1909.

Serial No. 479,413,

To all whom it may concern Be it known that I, EMIL GRAF, a citizen ofthe German Empire, and resident of Elberfeld, German Empire, haveinvented new and useful Improvements in Looms, of which the following isa full, clear, and exact description.

The present invention relates to looms, more particularly to that classknown as needle looms, and has for its object to provide a device bymeans of which the weft will be quickly and accurately threaded throughthe shed by a weft-carrier.

With this end in view the invention consists in providing for needlelooms a device such as herein specified, composed of parts arranged andoperated in the manner fully described and illustrated in the followingspecification.

In order to more clearly understand the construction and operation ofthe device,

reference is to be had to the accompanying drawings, in which- Figure 1is a side elevation (with parts in cross section), of the device securedto the batten foot; Fig. 2 is a plan view ofthe device; Fig. 3 is afront elevation of the device; Fig. 4 is an elevation of the drivingwheel in its position of rest, drawn to anenlarged scale; Fig. 5 showsthe weft carrier, with needle and rope attachment; Fig. 5 shows theneedle with rope attached thereto; Fig. 6 shows the weft carrier withthe needle moved out and extending across the shed; Fig. 7 is acrosssection on an enlarged scale of the runningin needle sheath.

Referring first to Fig. 1 of the drawing, the numeral 1 is a carrier forthe whole apparatus, adjustably mounted on the batten or batten foot, soas to be easily regulated to correspond to the height of the reed.

2 is a metal plate adjustably attached to the said carrier 1, and -3 isan eccentric guiding slot in the said metal-plate, corresponding inshape and length to the path of the batten.

5 is a lever, and a a bolt, provided at the front end of the said lever,and adapted to reciprocate in the said slot 3, according to the movementof the batten. The bolt 4; is inserted into the slot 3 through anenlarge ment 3*, formed at one end of said slot.

7 is a semicircular toothed segment formed with a projecting arm inwhich is formed the lateral slot'l' The toothed segment is pivotallymounted on the plate 2 by means of a bolt 7 which is at the same heightas the slot 3, and is adapted to be rotated back and, forth about thisaxis through an angle of about 180 as is later set forth. The bolt- 4,carried on the end of the lever 5, and moving inthe eccentric PatentedMay is, 1913,

slot 3, also registers in the lateral slot 7?,

of the member 7, so that as the bolt 1 moves along the slot 3, thesegment 7 is simultaneously rotated about its axis until it assumes theposition shown in Fig. 1.

13 is a bearing plate adjustably secured to the carrier 1, and havingmounted upon it the necessary gears through which the motion of thesegment 7 is transmitted to the weft carrier.

- 8 is a toothed gear'adapted to engage with the toothed segment 7 andat the same time carrying with it a beveled gear 9, which latter mesheswith a second bevel gear 10.

11 is another toothed gear rigidly connected to the bevel gear 10, andadapted to engage the weft carrier 12. e

19 is an angular piece mounted upon the lay 23, serving as a guide forthe weft carrier so that the latter moves safely and rapidly in thelease. The lay 23 moves laterally back and forth, being operated throughthe medium of the crank 22 and shaft 21.

The weft carrier 12 consists of a lightcasing 14: and a needle 15 (Figs.5 5 6 and 7 adapted to telescope within the said casing.

16 is a beltor rope attached to the end 15 of the needle 15.

17, 17 are small rollers, arranged within the said casing 14, at eitherend of the same, and guiding the belt or rope 16, which latter passesout of the casing and is fastened to the bearing piece 13 on either sideof the gear 11. v

18 is an oblong weft-thread-guiding head forming the front end of'theneedle 15. Arranged in the interior of the casing 14, and permanentlysecured thereto is a rack 20, etc tending from one roll 17 to the other.'This rack is in engagement with the toothed gear 11.

The operation is briefly as follows: Fig. 1 represents the back centerposition. of the lay. As the lay moves forward, the

toothed segment 7 rotates through 180 as previously described, and atthe same time it acts through the medium of the gears 8, 9, 10 and 11,directly upon the weft carrier 12, which is withdrawn. The segment 7 andlever 5 are then in the position shown in Fig. 4. When the lay movesfrom the position shown in Fig. at to that shown in Fig. 1, the needlewill be advanced.

To describe more minutely the operation of the weft carrier and itsparts: When the gear 11 meshes with the rack and drives the casing 14:forward, the rope 16 will simultaneously pull forward the needle 15which is fastened to it at 15*. Thus the weft carrier is advanced onlyhalf way across the shed, while a stroke is attained which is twice thatof the weft carrier. The width of the path either for wide or narrowfabrics may be easily adjusted by inserting a smaller or greater toothedwheel 8 or 11 respectively.

Having described my invention what I claim is:

In a needle loom, the combination of a movable casing, a weftthread-carrying needle movably arranged within the said casing, a rollat the one end and another roll at the other end within the said casing,a bearing piece, carrying the said casing, a rope passed over the tworolls, and fastened in a suitable manner to the bearing piece and to theweft-thread-carrying needle, a gear, and means in connection with thesaid gear and with said casing and weft thread carrying needle formoving the casing forward and simultaneously forcing the weft threadcarrying-needle out of said casing.

In testimony whereof I affix my signature in the presence of twowitnesses.

EMIL GRAF. [1 s] Witnesses:

O'r'ro KoNIG, KARL NIESEN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents. Washington, D. G.

